| 100% | BENZENE | 7 | A chemical compound whose formula is C6H6 |
| 55% | GLYCEROL | 8 | Compound whose formula is C3H8O3 |
| 48% | WATER | 5 | Liquid whose chemical formula is a homophonic hint to the answers to starred clues |
| 42% | IMINE | 5 | A chemical compound |
| 42% | GLUCOSE | 7 | Sugar whose chemical formula is C6H12O6 |
| 39% | ETHYL | 5 | ___ alcohol (chemical compound whose first word sounds like a woman's name) |
| 39% | ADAMSILVER | 10 | NBA commissioner whose last name is a metal with the chemical symbol Ag: 2 wds. |
| 38% | INP | 3 | Formula for a compound of elements number 15 and 49 that is used in making high speed transistors |
| 38% | TRACEYGOLD | 10 | "Growing Pains" actress whose last name is a metal with the chemical symbol Au: 2 wds. |
| 37% | ENE | 3 | Suffix with "Benz" to mean a chemical compound |
| 37% | LYE | 3 | Chemical compound with the formula NaOH |
| 37% | FREDDIE | 7 | With 34-Across, Queen lead singer whose last name is a metal with the chemical symbol Hg |
| 37% | CO2 | 3 | Chemical formula for a compound absorbed by a tree bearing a 37 Across (and a description of its circled letters) |
| 36% | IRONOXIDE | 9 | Rust is a form of this chemical compound |
| 36% | CARBON | 6 | Chemical element whose symbol is C |
| 36% | IODINE | 6 | Chemical element whose symbol is I |
| 36% | SODIUM | 6 | Chemical element whose symbol is Na |
| 36% | URANIUM | 7 | Chemical element whose symbol is U |
| 36% | LEAD | 4 | Chemical element whose symbol is Pb |
| 35% | ETHER | 5 | Chemical compound that’s an anagram of a number |
| 35% | AGF | 3 | Silver fluoride expressed as a chemical formula |
| 35% | AMINES | 6 | Chemical compounds that can be alkyl or aromatic |
| 34% | TUNGSTEN | 8 | Chemical element whose atomic number is 74 |
| 34% | PLUTONIUM | 9 | Chemical element whose atomic number is 94 |
| 34% | FLUORINE | 8 | Chemical element whose atomic number is 9 |
| 34% | INERT | 5 | A stable chemical that is non-reactive |
| 34% | MOSOTHO | 7 | A person whose native country is Lesotho |
| 34% | ROBINGIBB | 9 | A Bee Gee whose twin was Maurice |
| 34% | ISOMER | 6 | Compound with a chemical "twin" |
| 33% | IODINE | 6 | Chemical element whose atomic number is 53-Across |